US1439920A - Tractor - Google Patents

Description

W.TA. SORG. FILED No5.c H.. 1920.

rra/TJAYE Patented mec. Elfi, 1923.

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WILLZAM A. SOEG, OF 'DENVERQCLORADQ i TRACTOR.

Application led November 11, 1920. Serial No( 423,282.

To all Azo hor/t 'it muy cof/mem Be itknown that LViLLiAM A. Sono, a citizen of the United States, residing at Denver, in the county of Denver and Statefoi Colorado, have Ainvented a new and `usei'il 'allie-cto@y ot whichtliefollowing is av speciiication.

'My invention relates to improvements in traotoi's,` Athe*primary 'objectbeing to obtain vtraction and eliminate slippage soft ground and twisting strains upon the bearings and 4driving 'members oi the device. itt/lore particularly this invention is animprovement upon the construction set forth in Patent lhlo; 11,0627/122 granted to ine on the thday 'oth/lay, 1913. To these ends my invention 'comprises the fteatures'oi construction and combination of parts hereinafter particularly described and defined by the appended claims.

In theY accompanying drawing toi-mini,r part o1? 'this specification, Figurel is a side elevation of myinvention.;` "r is a plan et the structure showninFig. 1, and Fig. 8 is a section taken on the `line/SW3 of Fig. 2 showinga detail' of the slack take up. i

` ln the drawing 10 indicates a body traine of channel steel or Yoiany other suitahle'construction and'inaterial to constitute a mounting; torthe 'iront stef-:rino` wheels 11, engine 12, transmission 13, countieishaftt 111 and com` bined platform and draw-bar 15. rilhe driif'c wheels 16 and 17, as shown, aie'equipped with a circular track 18 on the inside of the rim or' each wheel and a pair oi rollers 19 and 9,() are adapted to come into contact with the track in each wheel as will hereinafter be described. The drive/wheels 16 and`17 u mounted rigidly upon the. wheel shaft 21 t, and revolvey together but any suitable d.. lerential mechanism of usual "construction may be employed. l' have found the use oi differential mechanism unnecessary, but for' Ytast running,` or wide tread' Vehicles diifteren` tial ymechanism may be desirable and used within the scope oit my invention.

..51 pair of longitudinal Vguiude bars 211 `and re mounted on the opposite ends ci the Vt :Q1 and are disposed near the yopposite ci the frame 1 0, being; slidably n1ounted in guides 26H2?, aind29 und adapted to move freely up and down and iorwardly and"hackwardly The guide hars, however,

have limited movement in the guidi-HI so that sprocketsO and l'fixed to the drive shaft are kept in alignment with the drive sprockets 32and 33 'onthe'countershaft 14 AAdditional Sideiguides in the form of anti! friction rollers 311a and 35, bearing 'against the side edgesof the rims `of the wheels and mounted on the traine, areadapted ,to assist in limiting side play and guide the wheels.

The guidesrelieve wear and strain upon the ulcruins so that theful'crums perform their 'unction of `fulcru'ming'without Kgrinding.

Chain belts 36 and 37 `respectively passing around sprockets and 32'and`31 and 33 serve to y'transmit :power Vfrom "the countervsha-ft and Vengine 12 'to the Lmain tractor wheels 16 and 17, but itishould loe understood that any other suitable method of driving may be substituted -ior the chain drive. y y I The rollers 19 and 2O 'of each pair constituteri'espectively forward and backward antidrictionfulcrums for the traction wheel with which they are 'immediately associated and a line joiningI the `axes oi' 19 and "2O is less than the diameter of the wheel so that sutlicient 'slack space is provided Yin which `the traction/wheel may rplaytrcely. The

rollers 19 and 2O are 'j'ournfa'led reelyon yshafts 3S-'and 39, 'which 'are mounted' rigidly on the frame 10 anditoV ined' with yokes t0 to freely'escape the "sprockets vand chains. rl-hus, when power isl'ap'p'lied tothesprockets and 31 the pull on 'tliechains is trans eried to thetop of said sprockets and the drive wheels will more torx'vaid bringing the tracks oit the wheels in contact with the rollers This action causes 'the 'ii-'ame to move tornarci?` the 'weight 'of the frame 10,

engine 12 and transmission thus'restinaupon rollers 19 and the rollers Q0 being cutoff contact with the track wheel. The reverse acion is produced wlieirthe counter-shaft is reversed7 the pull of the chains being ltorward on thelower'halzt ofthe sprockets 0k and 31, thereby shitting the wheels with their tracks fulcruming upon-rollers Q0 and caus-l iio volyngf e'aid Wheel Lind-Veni anti-fi'icion J si ,q v. .2n-11u' l' reilen constituting iuieiuin mounted on av d by@ efravneieiid riding: upon the in :5u face' the Wheel below and ai; one

geeble point, for the piiipost-LS 'ee i'f'oni sdid freine, :i guide jouin'aled upon the' :miie oi the Wheel `and siidahiy supported in siid fiume? "to iinii side thiustfof the Wheel in the freine, ineens ioif revolving' said iijheeij und uyfulci'u'n eziiiield by he/ fi'u'nie und riding upon "Sie innei' Suifziee of the the Wheel. u

" ingV freine, u pziii'of Wheel@ 'curiying theioid ""die fiume et :di time@ and having a coninion eide vfi'eo 'ioni` said Yi'i";iine,` znezins'ioi' inovzibly guiding" mid zixein Said fra-ine to limit Side ifiiiusu :means on Said frame foi' driving Suid iifh'eeis Suid driving` ineens in @hiding en" ez eoizipeneaie foi 151e up end 'downeiid longgif tudin'ai in'ovein it oif the Wheels in iframe, und piuieiity of 'uleiunis oaiiiied by the Emme :ind riding upon theinnei'y Surfece ofthe Wheels. i i li. in Sh jofopelle'd vehicle) u, supportN in@` i'u'ue, a, Tian" of cuinrying udieeishzi'ing a eo-" Q on eide 'iifee from said n me. oifnioirablyguidingSaid aide in sa i fiume fo iniitv sidebiusmej power `unit onA said :humain oiiuin beit drive between Suid power unitV und eeidniie. a Sleek take up iioifsii'id Chain heli: diive adapted "tofconipenszite For 'he u1u und down :und longitudinal n'ioifeinen; of Suid .v'ueis in ,seid 'fiume und pairs of 'form i und backward fuieiun'i Cui'ied hv oi the Wheels it ihe :sides of the miie of the wheelsa n i Seli? propelled 'venida a sui'ipoiiine; freni@ .fi unifying wheel hai'iij 'iibs an 'iee fi'oin seid whereby the freine oonet'iues zi. Heating member, means foi." limiting' the f'iee ploy of Suid Wheel up und down on' Seid "fiwiiney :en 'power' unit' onisaid oneible driving Connection io i7. In L Se propelled Winde, a oeiiyiiigg' ud.ieei lieoi' sind at. one side of the :i-Xis v `Lessines n f traine Vtor which said Wheel constitutes carrying element at all times and `disposed to pull a load7 a ulcrnm` arranged on the trame against which' the Wheel is adapted to press resultant force ot said pullingmovement upon said .load in a downward `direetion against the ground to reduce slipping.

28. In combination with a tractor having a loosely disposed traction Wheel and a frame for which said Wheel constitutes a carrying element at all times and disposed to pull a load7 said Wheel being permitted to move longitudinally in said frame, a t'ulerum arranged on the trame against which the wheel is adapted to press to transmit the resultant force ot said pulling eiort and means for guiding said Wheel longitudinally and limiting its' lateral movement in said frame. i

29. in combination With a tractor having a loosely disposed traction Wheel and a :trame for which said Wheel constitutes a to transmit the move longitudinally in said traine, a ulcrln'n` arranged on said frame against which the Wheel is adapted to press to transmit the` resultant forse of said pulling eort and means for guiding said Wheel longitudinally in said iframe.

30. .lin combination With a tractor having a loosely disposed traction Wheel and a trame Afor which said Wheel constitutes ya carrying element at all times and disposed to pull a loan, said Wheel being permitted to move longitudinally in said frame, a ulcruni arranged on said frame against which' the Wheel is adapted to press to transmit the resultant force of said pulling effort and means for limiting the movement of said Wheel laterally in said traine.

` ln testimony whereof, l have signed `nav name to this specification.

WiLLiai/i A. sono.

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